/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/GeometrySelectionManager.h
Directly set the current Selection for the specified Component to NewSelection. This function allows external code to construct explicit selections, eg for a Tool or Command to emit a new Selection. Component must already be an active target, ie set via AddActiveTarget. If the selection of the Target would be modified, a selection-change transaction will be emitted.
virtual bool SetSelectionForComponent ( [UPrimitiveComponent](API\Runtime\Engine\Components\UPrimitiveComponent) * Component, const [FGeometrySelection](API\Plugins\ModelingComponents\Selection\UGeometrySelectionManager\FGeometrySelecti-) & NewSelection )